Flux for Brazing Alloys
Chloride-free boric acid-borate mixture for high-temperature brazing of copper alloys. 3824.99.93 covers this soldering preparation not specified elsewhere. Removes oxides during joining.
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More Specific Codes
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Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If for soldering/brazing metals
Specific soldering fluxes have dedicated heading 3810.
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Import Tips & Compliance
• Distinguish from 3810 fluxes by temperature/use
• pH and residue analysis for CBP
• Bulk vs retail packaging affects subheading
Related Products under HTS 3824.99.93
Anti-Freeze Coolant Mixture
A glycol-based preparation used in automotive cooling systems to prevent freezing and boiling. Classified under 3824.99.93 as a chemical preparation of the allied industries not elsewhere specified, distinct from pure petroleum oils. It contains corrosion inhibitors and water.
Hydraulic Brake Fluid DOT 4
Synthetic glycol-ether based fluid for hydraulic brake systems in vehicles, meeting DOT 4 specifications. Falls under 3824.99.93 as a chemical preparation from allied industries, not pure oils or elsewhere specified. Provides high boiling point and moisture resistance.
Metal Pickling Liquor Preparation
Acid-based mixture with inhibitors for cleaning metal surfaces during pickling processes in manufacturing. Classified in 3824.99.93 as a chemical preparation not elsewhere specified, used in allied metal industries. Prevents excessive corrosion during descaling.
Foundry Core Binder Resin Mix
Phenolic resin-based binder combined with catalysts for sand cores in metal casting. Under 3824.99.93 as other chemical preparations, distinguished from pure binders in 3824.50. Falls in allied foundry industries.
Water Treatment Biocide Blend
Mixture of glutaraldehyde and quaternary ammonium compounds for controlling microbes in cooling towers. HTS 3824.99.93 covers this unspecified chemical preparation for industrial water systems. Prevents biofouling without restricted pesticide substances.
Concrete Admixture Plasticizer
Polycarboxylate ether-based superplasticizer for improving concrete workability and strength. Classified 3824.99.93 as chemical preparation for construction industry, not elsewhere specified. Reduces water content without strength loss.